CVE-2018-10901
CVSS V2 High 7.2
CVSS V3 High 7.8
Description
A flaw was found in Linux kernel's KVM virtualization subsystem. The VMX code does not restore the GDT.LIMIT to the previous host value, but instead sets it to 64KB. With a corrupted GDT limit a host's userspace code has an ability to place malicious entries in the GDT, particularly to the per-cpu variables. An attacker can use this to escalate their privileges.
Overview
- CVE ID
- CVE-2018-10901
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Analyzed
- Published Version
- 2018-07-26T17:29:00
- Last Modified Date
- 2023-02-24T18:43:28
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:redhat:enterprise_linux_server_aus:6.4:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:redhat:enterprise_linux_server_aus:6.5:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:redhat:enterprise_linux_server_aus:6.6:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:C/I:C/A:C
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 7.2
- Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 10
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.8
- Base Severity
- HIGH
- Exploitability Score
- 1.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3444d7da1839b851eefedd372978d8a982316c36 | Patch Vendor Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10901 | Issue Tracking Patch Third Party Advisory |
| http://www.securityfocus.com/bid/104905 | Third Party Advisory VDB Entry |
| https://access.redhat.com/errata/RHSA-2018:2394 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2018:2393 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2018:2392 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2018:2391 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2018:2390 | Third Party Advisory |
| https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0 | |
| https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html | |
| https://www.oracle.com/security-alerts/cpujul2020.html |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2018-10901 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-10901 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:40:47 | Added to TrackCVE | |||
| 2022-12-03 10:32:50 | 2018-07-26T17:29Z | 2018-07-26T17:29:00 | CVE Published Date | updated |
| 2022-12-03 10:32:50 | 2020-07-15T03:15:20 | CVE Modified Date | updated | |
| 2022-12-03 10:32:50 | Modified | Vulnerability Status | updated | |
| 2023-02-16 19:08:02 | Modified | Undergoing Analysis | Vulnerability Status | updated |
| 2023-02-16 19:08:02 | Weakness Enumeration | update | ||
| 2023-02-24 19:08:05 | 2023-02-24T18:43:28 | CVE Modified Date | updated | |
| 2023-02-24 19:08:05 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |